Relax selecting parent folder restrictions (up arrow in folder compare) (#1727829)
Show a warning if item can't be found anymore in folder compare
and it is tried to access (copy/move/delete) (#1723778)
New Borland Delphi file filter (#1699783)
Gradient toolbar (#1717774)
Bugfix: could not create new file filters in 2.7.3.4 (#1719892)

close WinMerge if Open-dialog is canceled when started
from command line (#1600714)
BugFix: project files didn't work (loaded right-side path
for both sides) (#1600000)
BugFix: location pane misdrawn when word-wrap enabled (#1584068)